| 摘要 |
PURPOSE:To simplify the registering operation of repetitive use of the same transferred number, by making the transferred number stored previously effective again through the nonrenewal registration after the registration canceling operation, in an incoming automatic transfer system of a telephone exchanger. CONSTITUTION:When a telephone set TEL-1 is hooked off after the registration canceling operation and a dialing of the nonrenewal registration number is transmitted or the operation of a function switch FK corresponding to the dialing is made for on-hook, a coded signal corresponding to the on-hook is seqientially transmitted and given to a detection section SDT via a receiver RX. Thus, based on the information of nonrenewal registration and on-hook, the detection section SDT discriminates the nonrenewal registration and gives control to a registration storing section FLG. Thus, the FLG is set again. Then, the transferred number previously stored can be made effective again. |
